Greeley Climate & Monthly Temperature Overview – United States

Summer in Greeley

Greeley’s summers are characterized by scorching temperatures and low humidity, making for hot and dry conditions. Temperatures commonly soar above 90°F (32°C) during the hottest months, with an average high of 95°F (35°C) in July. Nights offer little respite, with temperatures rarely dropping below 60°F (16°C). Precipitation is scarce during this period, with an average of 0.6 inches (15 mm) falling over the summer months. The combination of heat and aridity can increase the risk of heat-related illnesses, so precautions should be taken when engaging in outdoor activities.

Winter in Greeley

In contrast to the summer, winters in Greeley are remarkably frigid. Temperatures frequently plunge below freezing, with an average low of 15°F (-9°C) in January. Snowfall is common during this time of year, averaging 13 inches (33 cm) annually. Blizzards and snowstorms can occur, sometimes causing closures of roads and schools. Wind chill can push temperatures down even further, creating treacherous conditions for outdoor activities. However, the crisp, clear skies and picturesque snowy landscapes can provide opportunities for winter sports and recreation.

Summer Temperatures

Greeley experiences warm to hot summers with average temperatures ranging from 70°F (21°C) in June to 86°F (30°C) in July and August. The hottest temperature ever recorded in Greeley was 105°F (40.6°C) on July 20, 2005. The city receives an average of 20.28 inches of rain per year, with most precipitation occurring during the summer months.

Winter Temperatures

In contrast to its warm summers, Greeley has cold winters with average temperatures hovering around freezing point. January and December are the coldest months, with average temperatures of 29°F (-1.7°C) and 32°F (0°C), respectively. The coldest temperature ever recorded in Greeley was -27°F (-32.8°C) on February 12, 1899. Snowfall is common during the winter months, with the area averaging 30 inches annually.

Cloud Types and Characteristics

Greeley, Colorado, experiences a variety of cloud types throughout the year. During the summer months, cumulus clouds are common, characterized by their puffy, cotton-like appearance. These clouds often develop in the morning and dissipate by evening. Cirrus clouds, delicate and wispy high-altitude clouds made of ice crystals, are also frequently observed. In the spring and fall, Greeley skies may be adorned with altocumulus clouds, resembling small cotton balls, and stratus clouds, forming a thin, uniform overcast.

Seasonal Variations and Weather Patterns

The cloud cover in Greeley varies seasonally. Summer tends to be the cloudiest season, with an average of 50% of the sky covered by clouds. In the winter, cloud cover decreases to around 30%. Cloud cover is also influenced by weather patterns. When a cold front approaches, cirrocumulus clouds, characterized by their small, white ripples, often precede the arrival of rain or storms. Cumulonimbus clouds, anvil-shaped clouds associated with thunderstorms, may also be observed during these weather events.

Annual Precipitation

Greeley, Colorado, receives an average of 16.53 inches of precipitation annually, according to the National Oceanic and Atmospheric Administration (NOAA). This amount is relatively low compared to the national average of 38 inches. The precipitation in Greeley is spread fairly evenly throughout the year, but there is a slight increase during the summer months. The wettest month on average is May, which receives an average of 2.68 inches of precipitation. The driest month is December, which receives an average of 0.69 inches of precipitation.

Snowfall in Greeley

Greeley’s average annual snowfall is 26.2 inches, which is also relatively low compared to the national average of 50 inches. The snowfall in Greeley is typically heaviest during the winter months of December, January, and February. Snowfall can occur at any time during the year, however, and it is not uncommon to see snow in Greeley as early as October or as late as April. The snowiest month on average is December, which receives an average of 6.5 inches of snow. The least snowy month is July, which receives an average of 0.0 inches of snow.

Seasonal Distribution of Rainfall

Greeley’s rainfall distribution is characterized by a distinct seasonal pattern. The majority of precipitation falls during the late spring and early summer months (March to June), often accompanied by thunderstorms. These storms bring heavy downpours, accounting for a significant portion of Greeley’s annual rainfall. In contrast, the fall and winter months (October to February) tend to be drier, with less frequent and lighter rainfall. This precipitation often comes in the form of drizzle or snow, and contributes less to the city’s overall water resources.

Yearly Variation of Rainfall

The amount of rainfall in Greeley can vary considerably from year to year. While the average annual precipitation is approximately 13 inches, annual totals have ranged from lows of around 7 inches to highs of over 20 inches. This variability is influenced by factors such as large-scale atmospheric circulation patterns, which can alter the frequency and intensity of storms. Extended periods of drought or heavy rainfall can have significant impacts on water availability, agriculture, and the local environment.

Historical Snowfall Patterns

Greeley, Colorado experiences significant snowfall each winter, averaging around 30 inches annually. The snowfall typically begins in November and continues until March, with the heaviest snowfall occurring in December and January. The city has experienced extreme snowfalls in the past, such as in 2006 when a blizzard dumped over 26 inches of snow, causing transportation disruptions and power outages.

Impacts on the Community

Snowfall in Greeley has both positive and negative impacts on the community. The snow provides opportunities for winter sports and recreation, such as sledding, snowshoeing, and cross-country skiing. However, it can also create challenges for transportation, infrastructure, and public safety. During heavy snowstorms, roads can become impassible, schools and businesses may close, and emergency services may be delayed. The city implements snow removal and ice control measures to mitigate these impacts and ensure the safety of residents.

Sunrise and Sunset Times

The sunrise time in Greeley, United States, varies significantly depending on the season. During summer, the sun typically rises between 4:45 AM and 5:15 AM. As autumn progresses, the sunrise gradually shifts later, occurring around 6:30 AM to 7:00 AM in the fall. By winter, sunrise typically occurs between 7:15 AM and 7:45 AM. Conversely, sunset times follow a similar pattern, with earlier sunsets in winter (around 4:30 PM to 5:30 PM) and later sunsets in summer (around 8:00 PM to 9:00 PM).

Daylight Hours

The duration of daylight in Greeley also varies seasonally. Summer experiences the longest days, with approximately 15 to 16 hours of daylight. During this time, the sun remains above the horizon for an extended period, providing ample opportunities for outdoor activities. In contrast, winter has the shortest days, with only around 9 to 10 hours of daylight. The limited sunlight during these months can impact daily routines and may lead to seasonal affective disorder (SAD) in some individuals. Overall, the variation in daylight hours between seasons is a notable feature of Greeley’s climate.

Sunrise and Sunset of the Moon in Greeley

In Greeley, United States, the moon’s rising and setting times vary depending on the day of the year. The moon rises in the east and sets in the west, and the specific times at which it appears and disappears change due to the Earth’s rotation and the moon’s orbit around the Earth. During the summer months, the moon typically rises later and sets earlier, while during the winter months, it tends to rise earlier and set later. The actual times can be found using a moonrise/moonset calculator or by consulting astronomical tables.

Moon Phases in Greeley

The moon goes through a cycle of phases as it orbits the Earth, and these phases are visible from Greeley. The phases include new moon, waxing crescent, first quarter, waxing gibbous, full moon, waning gibbous, third quarter, and waning crescent. During a new moon, the moon is not visible from Earth because it is between the Earth and the sun. As the moon moves in its orbit, it gradually becomes visible as a waxing crescent, and the amount of the moon that is illuminated increases each night. When the moon is opposite the sun from Earth, it appears as a full moon and is fully illuminated. As the moon continues in its orbit, the illuminated portion gradually decreases until it reaches a new moon again.

Seasonal Variations in Humidity

Greeley experiences significant seasonal variations in humidity levels. During the summer months, humidity typically rises, reaching its peak in July and August. This high humidity is often accompanied by warm temperatures, creating a muggy and uncomfortable atmosphere. In contrast, winter months are characterized by low humidity levels, with January typically being the driest month. During this time, the air feels crisp and dry.

Impact of Humidity on Health and Comfort

Humidity levels can have a significant impact on human health and comfort. High humidity can make it difficult to regulate body temperature, potentially leading to heat-related illnesses such as heat exhaustion and heat stroke. It can also aggravate respiratory conditions such as asthma and allergies. On the other hand, low humidity can cause dry skin, chapped lips, and eye irritation. Optimal humidity levels for human comfort typically range between 30% and 50%. When humidity falls below or exceeds these levels, it can become uncomfortable and may require adjustments to indoor conditions, such as using a humidifier or air conditioner.

Wind Patterns in Greeley

Greeley experiences variable year-round wind patterns. During the winter months, strong northwesterly winds prevail due to the pressure gradient between the cold air mass over the Rocky Mountains and the relatively warmer air over the plains. These winds can reach sustained speeds of 15-20 mph (24-32 km/h), with occasional gusts exceeding 30 mph (48 km/h).

In contrast, summer winds in Greeley are predominantly from the south and southeast. The prevailing south wind pattern is driven by the heating of the land surface during the day, creating a low-pressure area over the plains that draws in air from the Gulf of Mexico. These southerly winds tend to be lighter and more variable than the winter northwesterlies, with average speeds ranging from 5-10 mph (8-16 km/h).

Spring (March-May)
Greeley welcomes spring with vibrant hues and a revitalized atmosphere. Temperatures gradually rise to comfortable levels, averaging between 40°F and 70°F. This period is ideal for outdoor enthusiasts seeking adventure in the Cache la Poudre River National Heritage Area, where hiking trails and whitewater rafting opportunities abound. Flower enthusiasts can marvel at the blooming wildflowers that paint the area in a kaleidoscope of colors.

Summer (June-August)
Summer in Greeley brings warm, sunny days and average temperatures ranging from 50°F to 90°F. This is the perfect time to explore the city’s many parks and gardens, where lush greenery and vibrant floral displays create a tranquil oasis. TheGreeley Stampede Rodeo, a world-renowned event held in July, offers an exhilarating spectacle of rodeo competitions, live music, and carnival rides. Outdoor concerts and festivals add to the summer’s lively ambiance, making it a vibrant season for locals and visitors alike.

Solar Irradiation and Potential

Greeley, Colorado, is situated in a region with ample solar resources. The city receives an average daily solar irradiation of approximately 4.9 kilowatt-hours per square meter. This high level of solar energy makes Greeley an ideal location for the development of solar photovoltaic (PV) systems. These systems can convert sunlight directly into electricity, providing a clean and sustainable source of energy. The potential for solar energy utilization is significant, with numerous rooftop areas and open spaces available for PV installations.

Initiatives and Installations

Several initiatives have been implemented in Greeley to promote solar energy adoption. The city has adopted a Solar Energy System Incentive Program that provides financial assistance to residential and commercial customers installing PV systems. Additionally, Greeley Utilities, the local energy provider, offers a net metering program that allows solar system owners to sell excess electricity back to the grid at retail rates. As a result of these initiatives and the abundant solar resources, Greeley has witnessed a steady increase in solar energy installations. Numerous homes, businesses, and public buildings are now equipped with solar PV systems, contributing to the city’s sustainability efforts and reducing its reliance on fossil fuels.

Topography

Greeley, Colorado, lies in a relatively flat and featureless region of the Great Plains. The city is situated on the South Platte River, which flows through a broad valley flanked by gently rolling hills. The terrain gradually slopes upward to the west and south, reaching an elevation of over 5,000 feet above sea level at the foothills of the Rocky Mountains. The absence of prominent topographic features in Greeley contributes to its wide-open and expansive landscape.

Climate Influences on Topography

The topography of Greeley is influenced by its semi-arid climate. The region experiences relatively low precipitation and high evaporation rates, leading to the development of a flat and dry landscape. The lack of vegetation cover, combined with the area’s rotational grazing practices, has contributed to the formation of grasslands and prairies. The South Platte River, which provides irrigation for agriculture, has also played a role in shaping the topography by creating a fertile valley and supporting riparian vegetation. The gradual rise in elevation towards the mountains is a consequence of tectonic uplift and the erosive forces of rivers and glaciers that have shaped the Rocky Mountains over time.

Nearest Airport in Greeley, United States

Greeley, Colorado, is home to the Northern Colorado Regional Airport (GXY), the closest airport to the city. It is located just 10 miles southwest of Greeley and offers both commercial and private aviation services. The airport has daily flights to Denver International Airport (DEN), the largest airport in the state and a major hub for both domestic and international travel.

The Northern Colorado Regional Airport is a convenient option for travelers visiting Greeley and the surrounding area. It offers a range of amenities, including car rental services, a restaurant, and a gift shop. The airport is also easily accessible by public transportation, with a shuttle service connecting it to downtown Greeley and other nearby locations.

In addition to the Northern Colorado Regional Airport, there are several other airports within a reasonable driving distance of Greeley. Denver International Airport is approximately 50 miles away, while Cheyenne Regional Airport (CYS) in Wyoming is about 60 miles away. These larger airports offer a wider range of flight options and connections to destinations around the world. However, for travelers seeking the most convenient and direct access to Greeley, the Northern Colorado Regional Airport is the best choice.

The History of Greeley, Colorado

Greeley, a city in Weld County, Colorado, was founded by Union Army veterans in 1869. The city was named after Horace Greeley, a prominent journalist and abolitionist who advocated for western settlement. Greeley quickly became a major agricultural center, and by the early 20th century, it was known as the “Queen City of the Plains.” The city’s economy was based on sugar beets, wheat, and other crops, and it also had a thriving livestock industry. Greeley was also a major railroad hub, and it played an important role in the settlement of the American West.

In the 20th century, Greeley continued to grow and develop. The city’s economy diversified, and it became a center for food processing, manufacturing, and research. Greeley is also home to the University of Northern Colorado, a major public university. Today, Greeley is a thriving city with a population of over 100,000 people. It is a regional center for commerce, culture, and education, and it is known for its beautiful parks, historic downtown, and vibrant arts scene.